Rheem furnace error code 45
Rheem furnace error code 45 means that your furnace has been acting up. Various issues could cause this, but the most common cause is that your thermostat is not working correctly.
Rheem furnace error code 45 is an indication that the thermostat on your Rheem heater is not working correctly, and it may be malfunctioning due to a faulty wire connection.
In most cases, this error code can also be caused by a loose connection between the heating unit and thermocouple wiring. If you are unsure whether it’s your thermostat or wiring issue, call an HVAC professional to check it out.
Error code 45 is the result of a failed burn control system. With this code, it is possible that the burner did not ignite or remain lit for one minute.
If your furnace is maintaining a steady temperature and you have replaced the malfunctioning components, turn off the power unit and call Rheem to schedule a service call.
Error code 45 is the most common error in Rheem furnaces. One of the most common causes for this error code is an issue with the gas valve.
Error Code 45: One of the most common causes for this error code is an issue with the gas valve
The most frequent causes of this error are:
1. Clogged drain hose- This can lead to a clogged drain line, clogged flame tube, or back pressure on the burner, causing a loss of flame and reduced heat output
2. Bad/Poor installation- This could include leaky flue pipe or improper venting